Upstream oodles of Chrome for Android code into Chromium.

chrome/android/java_staging/src/org/chromium/chrome/browser/enhancedbookmarks/EnhancedBookmarkActivity.java

+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.chrome.browser.enhancedbookmarks;
+
+import android.os.Bundle;
+
+import com.google.android.apps.chrome.R;
+
+import org.chromium.chrome.browser.snackbar.SnackbarManager;
+import org.chromium.chrome.browser.snackbar.SnackbarManager.SnackbarManageable;
+
+/**
+ * The activity that wraps all enhanced bookmark UI on the phone. It keeps a
+ * {@link EnhancedBookmarkManager} inside of it and creates a snackbar manager. This activity
+ * should only be shown on phones; on tablet the enhanced bookmark UI is shown inside of a tab (see
+ * {@link EnhancedBookmarkPage}).
+ */
+public class EnhancedBookmarkActivity extends EnhancedBookmarkActivityBase implements
+        SnackbarManageable {
+
+    private EnhancedBookmarkManager mBookmarkManager;
+    private SnackbarManager mSnackbarManager;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        mSnackbarManager = new SnackbarManager(findViewById(android.R.id.content));
+        mBookmarkManager = new EnhancedBookmarkManager(this);
+        setContentView(mBookmarkManager.getView());
+        getWindow().setBackgroundDrawable(null);
+        EnhancedBookmarkUtils.setTaskDescriptionInDocumentMode(this, getString(R.string.bookmarks));
+
+        // Hack to work around inferred theme false lint error: http://crbug.com/445633
+        assert (R.layout.eb_main_content != 0);
+    }
+
+    @Override
+    protected void onDestroy() {
+        super.onDestroy();
+        mBookmarkManager.destroy();
+        mSnackbarManager.dismissSnackbar(false);
+    }
+
+    @Override
+    public SnackbarManager getSnackbarManager() {
+        return mSnackbarManager;
+    }
+
+    @Override
+    public void onBackPressed() {
+        if (!mBookmarkManager.onBackPressed()) super.onBackPressed();
+    }
+}